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Latest Great Lakes Marine Forecast by KBUF
Issued 7/16/2026 10:03 PM America/New_York.
Valid through 7/17/2026 5:00 AM America/New_York.
fzus61 kbuf 170203
glflo
expires:202607170900;;094173
open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt thu jul 16 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a weak cold front moves southward across lake ontario this evening.
behind the front, a ridge averaging 30.1 inches builds from the
upper great lakes through friday. a warm front should sweep
northeastward across lake ontario friday night through saturday
morning as the ridge exits toward new england and a 29.7 inch low
moves eastward across the northwestern great lakes. later on
saturday, a cold front should move eastward across lake ontario as
the low moves farther eastward toward southern quebec. behind the
low and cold front, a 29.9 inch ridge should slide southeastward
across the great lakes through monday. a warm front should sweep
northeastward across lake ontario monday night and a cold front
should sweep eastward across the lake on tuesday as a 29.5 inch low
moves eastward across northern ontario and northern quebec.
loz062-170900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt thu jul 16 2026
.overnight...north winds 5 to 15 knots becoming northeast.
smoke. waves 1 to 3 feet.
.friday...east winds 10 knots or less. smoke. waves 1 foot or
less.
.friday night...southeast winds 5 to 10 knots becoming south.
smoke. a chance of showers overnight. waves 1 foot or less.
.saturday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. patchy smoke in the morning. showers likely in the
morning, then showers with a chance of thunderstorms in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet.
.saturday night...west winds 15 to 20 knots becoming north.
showers with a chance of thunderstorms in the evening, then a
chance of showers overnight. waves 2 to 4 feet.
.sunday...north winds 5 to 15 knots becoming west less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less.
.monday...southwest winds 5 to 15 knots. a chance of showers
monday night. waves 2 feet or less.
.tuesday...southwest winds 15 to 20 knots becoming west. showers
likely. waves 1 to 3 feet building to 2 to 4 feet.
winds and waves higher in and near thunderstorms.
$$
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Latest Great Lakes Marine Forecast by KDTX
Issued 7/17/2026 3:57 AM America/New_York.
Valid through 7/17/2026 12:00 PM America/New_York.
fzus63 kdtx 170757
glflh
expires:202607171600;;108688
open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt fri jul 17 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...canadian wildfire smoke persists today amidst high
pressure influence. the next weak low pressure systems arrive
friday bringing a round of showers and thunderstorms late in the
day and overnight. this will be followed by a secondary low on
saturday tracking across the straits into northern lake huron with
additional unsettled weather.
lhz362-363-171600-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
357 am edt fri jul 17 2026
...dense smoke advisory in effect until 4 pm edt this afternoon...
.today...light and variable winds becoming southeast 5 to
10 knots late in the afternoon. smoke. waves 2 feet or less.
.tonight...southeast winds 10 to 15 knots becoming south 15 to
20 knots early in the morning. a chance of showers in the
evening...then a chance of showers and thunderstorms after
midnight. areas of smoke in the evening. smoke after midnight.
waves 1 to 3 feet building to 2 to 4 feet after midnight.
.saturday...southwest winds 15 to 20 knots with gusts to around
30 knots becoming northwest 20 to 25 knots with gusts to 35 knot
gales early in the afternoon. a chance of showers and
thunderstorms in the morning...then a chance of showers in the
afternoon. waves 4 to 6 feet building to 5 to 7 feet early in the
afternoon. waves occasionally around 10 feet.
.saturday night...northwest winds 20 to 25 knots with gusts to
around 30 knots becoming northwest 20 to 25 knots. waves 5 to
7 feet. waves occasionally around 10 feet.
.sunday...north winds 5 to 10 knots in the morning becoming light
and variable...then becoming east 5 to 10 knots late in the
afternoon veering to the south. waves 2 to 4 feet subsiding to
1 to 3 feet.
.monday...south winds 10 to 15 knots increasing to 20 to 25 knots
with gusts to around 30 knots. showers and a chance of
thunderstorms . waves 1 to 3 feet building to 4 to 6 feet. waves
occasionally around 8 feet.
.tuesday...southwest winds 15 to 20 knots becoming northwest
20 to 25 knots early in the evening...then increasing to 30 knots
by midnight. gusts to 35 knot gales. showers likely and a chance
of thunderstorms early in the morning...then a chance of showers
until early evening. waves 6 to 9 feet. waves occasionally around
12 feet.
$$
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Latest Great Lakes Marine Forecast by KDTX
Issued 7/17/2026 3:57 AM America/New_York.
Valid through 7/17/2026 12:00 PM America/New_York.
fzus63 kdtx 170757
glflh
expires:202607171600;;108689
open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt fri jul 17 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...canadian wildfire smoke persists today amidst high
pressure influence. the next weak low pressure systems arrive
friday bringing a round of showers and thunderstorms late in the
day and overnight. this will be followed by a secondary low on
saturday tracking across the straits into northern lake huron with
additional unsettled weather.
lhz462>464-171600-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
357 am edt fri jul 17 2026
...dense smoke advisory in effect until 4 pm edt this afternoon...
.today...light and variable winds becoming southeast 5 to
10 knots late in the afternoon. smoke. waves 2 feet or less.
.tonight...southeast winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and overnight. smoke in the
evening...then areas of smoke after midnight. waves 2 feet or
less building to 2 to 4 feet after midnight.
.saturday...southwest winds 15 to 20 knots veering to the west
with gusts to around 30 knots early in the afternoon. a chance of
showers and thunderstorms. waves 2 to 4 feet.
.saturday night...north winds 20 to 25 knots with gusts to
35 knot gales decreasing to 10 to 15 knots. waves 5 to 7 feet.
waves occasionally around 10 feet.
.sunday...north winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming light and variable late in
the afternoon becoming south 5 to 10 knots late in the evening.
waves 3 to 5 feet subsiding to 2 feet or less late in the
afternoon.
.monday...south winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to around 30 knots . showers early in the evening.
rain showers and a chance of thunderstorms by midnight. waves
1 to 3 feet building to 3 to 5 feet .
.tuesday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then becoming
west 15 to 20 knots with gusts to 35 knot gales early in the
evening becoming northwest 20 to 25 knots with gusts to 35 knot
gales by midnight. showers early in the morning. a chance of
thunderstorms. a chance of showers. waves 3 to 5 feet building to
5 to 7 feet by midnight. waves occasionally around 10 feet.
$$
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